Global Patent Index - EP 2338678 A3

EP 2338678 A3 20121219 - High tenacity nonwoven fabric

Title (en)

High tenacity nonwoven fabric

Title (de)

Vliesstoff mit hoher Festigkeit

Title (fr)

Etoffe non-tissée à haute résistance

Publication

EP 2338678 A3 20121219 (EN)

Application

EP 11155649 A 20040422

Priority

  • EP 04728904 A 20040422
  • JP 2003116957 A 20030422

Abstract (en)

[origin: EP1637317A1] The present invention provides a laminated nonwoven fabric wherein the nonwoven fabric is a laminated one formed by integrating, through compressive bonding, a stacked nonwoven fabric structure comprising an upper and a lower thermoplastic synthetic filamentary fiber layer that have a fiber diameter from 7 µm or more to 20 µm, and an intermediate layer composed of thermoplastic synthetic fine fibers that have a fiber diameter of 5 µm or less, the laminated nonwoven fabric having an intimately mixed structure in which a portion of the fine fibers is intruded into at least one face side of the filamentary fiber layers with an intrusion index of 0.36 or more to bond, surround or interlace the filamentary fibers, a METSUKE of from 10 g or more to 250 g/m 2 , and a bulk density of 0.20 g/cm 3 or more. The spun-bonded laminated nonwoven fabric of the present invention is a nonwoven fabric material that has durable various filtering and barriering functions exhibited by the fine fiber layer forming the nonwoven fabric structure, and that is far more excellent in tensile tenacity than the corresponding spun-bonded nonwoven fabric.

IPC 8 full level

B32B 5/02 (2006.01); B32B 5/06 (2006.01); B32B 5/26 (2006.01); D04H 1/549 (2012.01); D04H 1/55 (2012.01); D04H 1/559 (2012.01); D04H 5/06 (2006.01); D04H 13/00 (2006.01)

CPC (source: EP KR US)

B32B 5/022 (2013.01 - EP KR US); B32B 5/06 (2013.01 - EP US); B32B 5/26 (2013.01 - EP KR US); B32B 7/022 (2018.12 - KR); B32B 37/10 (2013.01 - KR); D04H 1/559 (2013.01 - EP KR US); D04H 1/56 (2013.01 - EP KR US); D04H 3/14 (2013.01 - EP KR US); B32B 2250/03 (2013.01 - EP KR US); B32B 2250/20 (2013.01 - EP KR US); B32B 2262/0215 (2013.01 - EP KR US); B32B 2262/0261 (2013.01 - EP KR US); B32B 2262/0276 (2013.01 - EP KR US); B32B 2307/102 (2013.01 - EP US); B32B 2307/306 (2013.01 - EP US); B32B 2307/54 (2013.01 - EP US); B32B 2307/728 (2013.01 - EP US); B32B 2410/00 (2013.01 - EP US); B32B 2419/04 (2013.01 - EP US); B32B 2419/06 (2013.01 - EP US); B32B 2437/02 (2013.01 - EP US); B32B 2553/00 (2013.01 - EP US); B32B 2555/02 (2013.01 - EP US); B32B 2571/00 (2013.01 - EP US); Y10S 428/903 (2013.01 - EP US); Y10T 428/26 (2015.01 - EP US); Y10T 428/27 (2015.01 - EP US); Y10T 442/614 (2015.04 - EP US); Y10T 442/62 (2015.04 - EP US); Y10T 442/621 (2015.04 - EP US); Y10T 442/659 (2015.04 - EP US); Y10T 442/666 (2015.04 - EP US); Y10T 442/68 (2015.04 - EP US); Y10T 442/697 (2015.04 - EP US)

Citation (search report)

Designated contracting state (EPC)

DE

DOCDB simple family (publication)

EP 1637317 A1 20060322; EP 1637317 A4 20070822; EP 1637317 B1 20130731; CN 100355562 C 20071219; CN 1777507 A 20060524; EP 2338678 A2 20110629; EP 2338678 A3 20121219; JP 4619947 B2 20110126; JP WO2004094136 A1 20060713; KR 100743751 B1 20070727; KR 20060006046 A 20060118; TW 200513564 A 20050416; TW I302171 B 20081021; US 2006292954 A1 20061228; US 2011162778 A1 20110707; US 7947359 B2 20110524; US 8349103 B2 20130108; WO 2004094136 A1 20041104

DOCDB simple family (application)

EP 04728904 A 20040422; CN 200480011020 A 20040422; EP 11155649 A 20040422; JP 2004005785 W 20040422; JP 2005505784 A 20040422; KR 20057019977 A 20051021; TW 93111260 A 20040422; US 201113051716 A 20110318; US 55360505 A 20051018